Lead zinc ore, is rich in metal elements of lead and zinc minerals, lead and zinc widely used in electrical industry, machinery industry, military industry, metallurgical industry, chemical industry, light industry and pharmaceutical industry and other fields. In addition, the lead metal in the nuclear industry, oil industry and other departments have more uses

Lead is one of the earliest metals extracted from lead and zinc ores. It is one of the most heavy metal soft, is one of the major metal, with blue gray, hardness of 1.5, the proportion of 11.34, the melting point of 327.4 DEG C, the boiling point of 1750 DEG C, show good, easy and other metals (such as zinc, tin, antimony, arsenic, etc.) made of alloy.

Zinc, a metal that is extracted from lead and zinc ores, is the last of 7 ancient nonferrous metals (copper, tin, lead, gold, silver, mercury, zinc). Zinc metal with blue and white, hardness 2, the melting point of 419.5 DEG C, the boiling point of 911 DEG C, heated to 100 to 150 DEG C, and has good pressure resistance, rolling after the proportion of 7.19. Zinc can be made with a variety of non-ferrous metal alloy or zinc alloy, the most important is the zinc and copper, tin, lead and other brass, but also with aluminum, magnesium, copper and other components of the die casting alloy.

Industrial requirements of lead zinc mine:

Although more than 250 kinds of lead and zinc minerals have been discovered, there are only about 17 kinds of industrial available. Among them, there are 11 kinds of industrial minerals lead and zinc mineral industry has 6 kinds, with galena and sphalerite is most important. Also, cerussite, smithsonite.

Industrial type of ore, the ore natural type as the foundation, according to the degree of oxidation of ore can be divided into sulfide ores (lead or zinc oxide ore, the oxidation rate of <10%) (lead or zinc oxide was >30%), mixed ore (lead or zinc oxide rate from 10% to 30%); according to the ore mainly useful components can be divided into: lead ore, zinc ore, lead-zinc ore, copper ore, lead-zinc ore, lead-zinc sulfur lead zinc copper sulfur ore, tin ore, lead ore, zinc ore, antimony etc.; according to the ore structure, can be divided into: disseminated ore and massive ore and brecciated ore, banded ore, veinlet ore.

In order to meet the needs of China's lead-zinc mine geological exploration and mine production and construction, former Ministry of Geology and mineral resources and the Ministry of metallurgical industry according to the situation of China's mineral resources and mining conditions of lead-zinc smelting technique, in 1983 jointly formulated and promulgated the "standards" lead-zinc mine geological exploration (trial), formulated the lead-zinc mine general industrial index survey exploration for evaluation of deposit or industrial value.

Lead zinc ore dressing method, lead zinc ore dressing technology:

Lead and zinc ores are generally rich in ore dressing to concentrate smelting lead and zinc metal products. Ore processing technology of metallurgical test, is an important part of the geological exploration and evaluation of mineral deposit is one of the important basis for whether commodity ore development, therefore in the process of geological exploration of ore beneficiability test must be. In the detailed investigation or preliminary phase, should do preliminary laboratory optional tests in chukan or detailed exploration stage to do with optional test. When the ore composition is complex, and the comprehensive utilization of large and super large deposits of large and medium-sized value or a new type of ore, except for detailed optional tests, when necessary even test the enlargement of the laboratory scale. For some types of ores, the laboratory smelting test should not be carried out when the method can not get the qualified concentrate products or can not be separated. Before the ore optional tests should be made on the ore composition division of deposit, ore type, identify occurrence, identification of minerals, mineral structure, particle size distribution characteristics, provide the basis for lead-zinc ore dressing equipment test reasonable process.

Lead zinc ore industrial division is based on the natural types in mineral in ore oxidation is divided into different levels of sulfide ores (lead or zinc oxide was less than 10%), (lead or zinc oxide ore oxidation rate is greater than 30%), mixed ore (lead or zinc oxide was 10% ~ 30%). According to the different components of useful ore can be divided into lead ore, zinc ore, lead-zinc ore, copper ore, lead-zinc ore, lead-zinc sulfur lead zinc copper sulfur ore, tin ore, lead ore, zinc ore, antimony etc.. According to the ore structure is different, can be divided into disseminated ore and massive ore and brecciated ore, banded ore, veinlet ores etc..

Zhengzhou Jintai Chinese beneficiation equipment Co. Ltd is a professional supply lead-zinc plant production line equipment, crusher, ball mill, vibration sieve, classifier, agitation tank, flotation machine, magnetic separator, dryer, beneficiation beneficiation equipment lead-zinc mine, according to the different ore types, is to choose different processing methods, also requires processing equipment different lead-zinc mine. Flotation methods for sulfide ores. The oxidized ore by flotation and flotation or gravity separation, flotation or sulfidation roasting, or with sulfuric acid before flotation separation. For the lead and zinc ores containing multi metals, the general method of magnetic flotation, gravity flotation, gravity magnetic flotation etc.. The separation commonly used lead zinc ore flotation process, the same process with other flotation, cannot do without crushing, grinding, grading, slurry mixing, flotation reagent. Our company lead-zinc ore dressing equipment to customers often with a jaw crusher, belt conveyor, feeding ball, ball mill, spiral classifier slurry mixing barrel, reagent mixing barrel, flotation machine and other auxiliary equipment, over the years a company have accumulated rich experience in production and processing of mineral processing equipment lead-zinc mine area, the lead-zinc plant is no longer what problem, to the interests of customers as the premise, do service to customers, to meet customer's aim.

Brief introduction of lead-zinc ore beneficiation and processing technology: lead-zinc smelting method: lead sulfide concentrate is the main mineral raw materials of lead smelting, fire and wet two smelting method. At present, the main method of fire, wet in the experimental research phase. Lead pyrometallurgy by precipitation sintering - blast furnace smelting and melting, melting reaction method. The refining of lead is mainly by fire refining, followed by electrolytic refining. Zinc sulfide is the main mineral raw materials of zinc hydrometallurgy and also by fire. Smelting by vertical distillation, distillation or electric furnace; zinc hydrometallurgy, fast development in the past 20 years, has become a major method of zinc. The crude zinc pyrometallurgical zinc distillation refining or direct application; and the hydrometallurgy of zinc electrolytic zinc, high quality, without refining. For the refractory lead zinc sulfide concentrate, it is usually used to produce lead and zinc at the same time. For the oxidation of lead zinc ore is extremely difficult to separation, China has a unique treatment method with zinc oxide mixed ores or its enrichment products, sintering or lumps in the blast furnace, to lead and zinc with coarse molten slag, slag fuming furnace further in smoke, Zinc Oxide products, and get used zinc electrolytic zinc. In addition, the rotary kiln can be used to obtain Zinc Oxide products. China's lead and zinc concentrate products are rich in associated components, in the smelting process has been integrated recovery, economic benefits are considerable. The comprehensive recovery of copper, sulfur, zinc, gold, silver, platinum group metals, bismuth, thallium, cadmium, selenium, tellurium and other products. The comprehensive recovery of zinc, sulfur, lead, copper, gold, silver, indium, gallium, germanium, cadmium, cobalt, thallium, mercury and other products.

Quality standard for lead concentrate

Lead-zinc ore dressing method, lead zinc ore dressing technology